/Engine/Source/Runtime/Engine/Public/StereoRenderTargetManager.h
In the editor, we may switch between preview shader platforms, which support various single-pass rendering methods (e.g. InstancedStereo or MobileMultiView). Sometimes RT managers have their own state that depends on the method, so this API provides them with the possibility to reconfigure it
virtual bool ReconfigureForShaderPlatform ( EShaderPlatform NewShaderPlatform )